Cacao has been moved around the globe by people for thousands of years. That makes it surprisingly difficult to tell whether a population of cacao trees is truly wild or the result of human transport and cultivation, making them introduced. This paper tries to tackle exactly that question, using genomic data. What motivated the authorsTraditionally, cacao variations were categorised into two main groups, Criollo and Forastero, with a third hybrid group, called Trinitario. Starting 2018, further studies showed this classification does not fully cover the genetic diversity present in the, by now, eleven identified populations: Amelonado, Caquetá, Contamana, Criollo, Curaray,…
Read more: Wild or Introduced? The cacao populations in South America